Or it could be compared to securely deleting data on a hard drive (in this example using ccleaner), or scanning for deleting files (with Recuva).
If you want to simple delete data from a drive, the head makes one pass over the data, and writes over top it if. If you do a very secure delete, it makes 35 passes over the data and writes X's over it 35 times. One time, and 35 times are not equal due to the amount of inexactness in the head positioning on the disk, sort of like in the old days with tape tracking.
When you run scan of a disk using Deep Scan method, all it's doing is making more passes over the same Volumn-Cylinder-Head-Sector address to see if it can pick up data using multiple passes, where as it would not using one pass.
Or it could be compared to securely deleting data on a hard drive (in this example using ccleaner), or scanning for deleting files (with Recuva).
If you want to simple delete data from a drive, the head makes one pass over the data, and writes over top it if. If you do a very secure delete, it makes 35 passes over the data and writes X's over it 35 times. One time, and 35 times are not equal due to the amount of inexactness in the head positioning on the disk, sort of like in the old days with tape tracking.
When you run scan of a disk using Deep Scan method, all it's doing is making more passes over the same Volumn-Cylinder-Head-Sector address to see if it can pick up data using multiple passes, where as it would not using one pass.
Disclaimer: non-technical description